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| author | Lennert Buytenhek <buytenh@wantstofly.org> | 2005-11-01 19:44:26 +0000 |
|---|---|---|
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2005-11-01 19:44:26 +0000 |
| commit | e9b72e43d96a1ea2be0f513c78f16743a835d252 (patch) | |
| tree | ed3a2cb9a84f56754ac1e4469c3a58f963b86237 /arch/arm/mach-ixp2000/ixdp2x00.c | |
| parent | 69a857610ad212ce4bcd8e6b13f25408691403de (diff) | |
| download | kernel_samsung_smdk4412-e9b72e43d96a1ea2be0f513c78f16743a835d252.zip kernel_samsung_smdk4412-e9b72e43d96a1ea2be0f513c78f16743a835d252.tar.gz kernel_samsung_smdk4412-e9b72e43d96a1ea2be0f513c78f16743a835d252.tar.bz2 | |
[ARM] 3064/1: start using ixp2000_reg_wrb
Patch from Lennert Buytenhek
Switch the users of ixp2000_reg_write that depend on writes being
flushed out of the write buffer by the time that function returns
over to ixp2000_reg_wrb.
When using XCB=101, writes to the same functional unit are still
guaranteed to complete in order, so we only need to protect against:
- reordering of writes to different functional units
- masking an interrupt and then reenabling the IRQ bit in CPSR
Signed-off-by: Lennert Buytenhek <buytenh@wantstofly.org>
Signed-off-by: Deepak Saxena <dsaxena@plexity.net>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'arch/arm/mach-ixp2000/ixdp2x00.c')
| -rw-r--r-- | arch/arm/mach-ixp2000/ixdp2x00.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/arch/arm/mach-ixp2000/ixdp2x00.c b/arch/arm/mach-ixp2000/ixdp2x00.c index 8b4a839..00af934 100644 --- a/arch/arm/mach-ixp2000/ixdp2x00.c +++ b/arch/arm/mach-ixp2000/ixdp2x00.c @@ -81,7 +81,7 @@ static void ixdp2x00_irq_mask(unsigned int irq) dummy = *board_irq_mask; dummy |= IXP2000_BOARD_IRQ_MASK(irq); - ixp2000_reg_write(board_irq_mask, dummy); + ixp2000_reg_wrb(board_irq_mask, dummy); #ifdef CONFIG_ARCH_IXDP2400 if (machine_is_ixdp2400()) @@ -101,7 +101,7 @@ static void ixdp2x00_irq_unmask(unsigned int irq) dummy = *board_irq_mask; dummy &= ~IXP2000_BOARD_IRQ_MASK(irq); - ixp2000_reg_write(board_irq_mask, dummy); + ixp2000_reg_wrb(board_irq_mask, dummy); if (machine_is_ixdp2400()) ixp2000_release_slowport(&old_cfg); |